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<p>The QTextBlockUserData class is used to associate custom data with blocks of text. <a href="#details">More...</a></p>
<pre> #include &lt;QTextBlockUserData&gt;</pre><p>This class was introduced in Qt 4.1.</p>
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<li><a href="qtextblockuserdata-members.html">List of all members, including inherited members</a></li>
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<h3>Public Functions</h3>
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<li><div class="fn"/>virtual <b><a href="qtextblockuserdata.html#dtor.QTextBlockUserData">~QTextBlockUserData</a></b> ()</li>
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<h2>Detailed Description</h2>
<p>The QTextBlockUserData class is used to associate custom data with blocks of text.</p>
<p>QTextBlockUserData provides an abstract interface for container classes that are used to associate application-specific user data with text blocks in a <a href="qtextdocument.html">QTextDocument</a>.</p>
<p>Generally, subclasses of this class provide functions to allow data to be stored and retrieved, and instances are attached to blocks of text using <a href="qtextblock.html#setUserData">QTextBlock::setUserData</a>(). This makes it possible to store additional data per text block in a way that can be retrieved safely by the application.</p>
<p>Each subclass should provide a reimplementation of the destructor to ensure that any private data is automatically cleaned up when user data objects are deleted.</p>
<p>See also <a href="qtextblock.html">QTextBlock</a>.</p>
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<h2>Member Function Documentation</h2>
<h3 class="fn"><a name="dtor.QTextBlockUserData"></a>QTextBlockUserData::~QTextBlockUserData ()&nbsp;&nbsp;<tt> [virtual]</tt></h3>
<p>Destroys the user data.</p>
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